Multiple choice general knowledge

The two elements that are frequently used for making transistors are

  1. boron and aluminium

  2. silicon and germanium

  3. iridium and tungsten

  4. niobium and columbium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Silicon and germanium are semiconductors - they have electrical conductivity between conductors and insulators, which can be controlled by doping. This property makes them ideal for transistors, the fundamental building blocks of modern electronics. Silicon dominates the industry due to its abundance and excellent oxide (SiO2) properties, while germanium was used in early transistors.

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